1. Hello, Win32 GUI(SWT) World!

    Posted on 7月 18th, 2012 by cx20

    Win32 GUI(Java)

    Win32 アプリケーションは Windows 標準 API である Win32 API を使用した Windows アプリケーションである。
    以下は Java の GUI ツールキット SWT の非公開 API を使用した Win32 GUI アプリケーション の例となっている。

    ソースコード

    Hello.java
    raw download
    import org.eclipse.swt.internal.Callback;
import org.eclipse.swt.internal.win32.MSG;
import org.eclipse.swt.internal.win32.OS;
import org.eclipse.swt.internal.win32.PAINTSTRUCT;
import org.eclipse.swt.internal.win32.RECT;
import org.eclipse.swt.internal.win32.TCHAR;
import org.eclipse.swt.internal.win32.WNDCLASS;
 
public class Hello {
    public static int WndProc(int hWnd, int uMsg, int wParam, int lParam) {
        int hdc;
        PAINTSTRUCT lpPaint = new PAINTSTRUCT();
        String strMessage = "Hello, Win32 GUI(SWT) World!";
 
        switch (uMsg) {
        case OS.WM_PAINT:
            RECT rect = new RECT();
            hdc = OS.BeginPaint(hWnd, lpPaint);
            OS.GetClientRect(hWnd, rect);
            OS.DrawTextW(hdc, strMessage.toCharArray(), strMessage.length(), rect, OS.DT_SINGLELINE);
            OS.EndPaint(hWnd, lpPaint);
            return 0;
        case OS.WM_DESTROY:
            System.exit(wParam);
        default:
            return OS.DefWindowProc(hWnd, uMsg, wParam, lParam);
        }
    }
 
    public static void WinMain(String[] args) {
        int hInstance = OS.GetModuleHandle(null);
        TCHAR className  = new TCHAR(0, "helloWindow", true);
        TCHAR windowName = new TCHAR(0, "Hello, World", true);
 
        WNDCLASS wc      = new WNDCLASS();
        wc.style         = OS.CS_HREDRAW | OS.CS_VREDRAW;
        wc.lpfnWndProc   = new Callback(Hello.class, "WndProc", 4).getAddress();
        wc.hInstance     = hInstance;
        wc.hCursor       = OS.LoadCursor(0, OS.IDC_ARROW);
        wc.hbrBackground = OS.GetStockObject(OS.COLOR_WINDOW + 1 );
        wc.lpszClassName = OS.HeapAlloc(OS.GetProcessHeap(), OS.HEAP_ZERO_MEMORY, className.length() * 2);
        OS.MoveMemory(wc.lpszClassName, className, className.length() * 2);
 
        OS.RegisterClass(wc);
 
        int hWnd = OS.CreateWindowEx(
            0,
            className,
            windowName,
            OS.WS_OVERLAPPEDWINDOW,
            OS.CW_USEDEFAULT, 
            OS.CW_USEDEFAULT,
            640,
            480,
            0,
            0,
            hInstance,
            null);
 
        OS.ShowWindow(hWnd, OS.SW_SHOW);
        OS.UpdateWindow(hWnd);
 
        MSG lpMsg = new MSG();
        while (OS.GetMessage(lpMsg, 0, 0, 0)) {
            OS.TranslateMessage(lpMsg);
            OS.DispatchMessage(lpMsg);
        }
    }
 
    public static void main(String[] args) {
        WinMain( args );
    }
 
}

    コンパイル＆実行方法

    C:¥> javac -cp org.eclipse.swt.win32.win32.x86_3.6.1.v3655c.jar;. Hello.java
C:¥> java -cp org.eclipse.swt.win32.win32.x86_3.6.1.v3655c.jar;. Hello

    実行結果

    +------------------------------------------+
|Hello, World!                    [_][~][X]|
+------------------------------------------+
|Hello, Win32 GUI(SWT) World!              |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
+------------------------------------------+

  2. Hello, Win32 GUI(UWSC) World!

    Posted on 7月 17th, 2012 by cx20

    Win32 GUI(UWSC)

    Win32 アプリケーションは Windows 標準 API である Win32 API を使用した Windows アプリケーションである。
    以下は UWSC にて PowerShell を呼び出す機能により C# を使用した Win32 GUI アプリケーション の例となっている。

    ソースコード（UWSC + PowerShell + C# + Win32）

    hello.uws
    raw download
    Option Explicit
 
Main()
 
Procedure Main()
    PowerShell( helloBlock, True, True )
FEnd
 
TextBlock helloBlock
    $source = @"
using System;
using System.Runtime.InteropServices;
 
public class Hello
{
    [StructLayout(LayoutKind.Sequential)]
    struct POINT
    {
        public int x;
        public int y;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct MSG
    {
        public IntPtr hwnd;
        public uint message;
        public IntPtr wParam;
        public IntPtr lParam;
        public uint time;
        public POINT pt;
    }
 
    delegate IntPtr WndProcDelgate(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam);
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
    struct WNDCLASSEX
    {
        public uint cbSize;
        public uint style;
        public WndProcDelgate lpfnWndProc;
        public Int32 cbClsExtra;
        public Int32 cbWndExtra;
        public IntPtr hInstance;
        public IntPtr hIcon;
        public IntPtr hCursor;
        public IntPtr hbrBackground;
        public string lpszMenuName;
        public string lpszClassName;
        public IntPtr hIconSm;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct RECT
    {
        public int Left;
        public int Top;
        public int Right;
        public int Bottom;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct PAINTSTRUCT
    {
        public IntPtr hdc;
        public int fErase;
        public RECT rcPaint;
        public int fRestore;
        public int fIncUpdate;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
        public byte[] rgbReserved;
    }
 
    const uint WS_OVERLAPPED = 0x00000000;
    const uint WS_POPUP = 0x80000000;
    const uint WS_CHILD = 0x40000000;
    const uint WS_MINIMIZE = 0x20000000;
    const uint WS_VISIBLE = 0x10000000;
    const uint WS_DISABLED = 0x08000000;
    const uint WS_CLIPSIBLINGS = 0x04000000;
    const uint WS_CLIPCHILDREN = 0x02000000;
    const uint WS_MAXIMIZE = 0x01000000;
    const uint WS_CAPTION = 0x00C00000; // WS_BORDER | WS_DLGFRAME
    const uint WS_BORDER = 0x00800000;
    const uint WS_DLGFRAME = 0x00400000;
    const uint WS_VSCROLL = 0x00200000;
    const uint WS_HSCROLL = 0x00100000;
    const uint WS_SYSMENU = 0x00080000;
    const uint WS_THICKFRAME = 0x00040000;
    const uint WS_GROUP = 0x00020000;
    const uint WS_TABSTOP = 0x00010000;
 
    const uint WS_MINIMIZEBOX = 0x00020000;
    const uint WS_MAXIMIZEBOX = 0x00010000;
 
    const uint WS_TILED = WS_OVERLAPPED;
    const uint WS_ICONIC = WS_MINIMIZE;
    const uint WS_SIZEBOX = WS_THICKFRAME;
    const uint WS_TILEDWINDOW = WS_OVERLAPPEDWINDOW;
 
    const uint WS_OVERLAPPEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX;
    const uint WS_POPUPWINDOW = WS_POPUP | WS_BORDER | WS_SYSMENU;
    const uint WS_CHILDWINDOW = WS_CHILD;
 
    const uint WM_CREATE = 0x0001;
    const uint WM_DESTROY = 0x0002;
    const uint WM_PAINT = 0x000F;
    const uint WM_CLOSE = 0x0010;
    const uint WM_COMMAND = 0x0111;
 
    const uint COLOR_WINDOW = 5;
    const uint COLOR_BTNFACE = 15;
 
    const uint CS_VREDRAW = 0x0001;
    const uint CS_HREDRAW = 0x0002;
 
    const int CW_USEDEFAULT = -2147483648; // ((uint)0x80000000)
 
    const uint SW_SHOWDEFAULT = 10;
 
    const int IDI_APPLICATION = 32512;
    const int IDC_ARROW = 32512;
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr LoadCursor(IntPtr hInstance, IntPtr lpCursorName);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr LoadIcon(IntPtr hInstance, IntPtr lpIconName);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern short RegisterClassEx(ref WNDCLASSEX pcWndClassEx);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr CreateWindowEx(uint dwExStyle, string lpClassName, string lpWindowName, uint dwStyle, int x, int y, int nWidth, int nHeight, IntPtr hWndParent, IntPtr hMenu, IntPtr hInstance, IntPtr lpParam);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern bool ShowWindow(IntPtr hWnd, uint nCmdShow);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern bool UpdateWindow(IntPtr hWnd);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern int GetMessage(out MSG lpMsg, IntPtr hWnd, uint wMsgFilterMin, uint wMsgFilterMax);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern int TranslateMessage([In] ref MSG lpMsg);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr DispatchMessage([In] ref MSG lpMsg);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern void PostQuitMessage(int nExitCode);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr DefWindowProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr BeginPaint(IntPtr hWnd, out PAINTSTRUCT lpPaint);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr EndPaint(IntPtr hWnd, ref PAINTSTRUCT lpPaint);
 
    [DllImport("gdi32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr TextOut( IntPtr hdc, int x, int y, string lpString, int nCount );
 
    [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr GetModuleHandle(string lpModuleName);
 
    static IntPtr WndProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam)
    {
        PAINTSTRUCT ps = new PAINTSTRUCT();
        IntPtr hdc;
        string strMessage = "Hello, Win32 GUI(UWSC) World!";
 
        switch (uMsg)
        {
            case WM_PAINT:
                hdc = BeginPaint( hWnd, out ps );
                TextOut( hdc, 0, 0, strMessage, strMessage.Length );
                EndPaint( hWnd, ref ps );
                break;
            case WM_DESTROY:
                PostQuitMessage(0);
                break;
            default:
                return DefWindowProc(hWnd, uMsg, wParam, lParam);
        }
 
        return IntPtr.Zero;
    }
 
    static int WinMain()
    {
        IntPtr hInstance = Marshal.GetHINSTANCE(typeof(Hello).Module);
        const string CLASS_NAME = "helloWindow";
        const string WINDOW_NAME = "Hello, World!";
 
        WNDCLASSEX wcex = new WNDCLASSEX();
        wcex.cbSize = (uint)Marshal.SizeOf(wcex);
        wcex.style = CS_HREDRAW | CS_VREDRAW;
        wcex.lpfnWndProc = new WndProcDelgate(WndProc);
        wcex.cbClsExtra = 0;
        wcex.cbWndExtra = 0;
        wcex.hInstance = hInstance;
        wcex.hIcon = LoadIcon(hInstance, new IntPtr(IDI_APPLICATION));
        wcex.hCursor = LoadIcon(hInstance, new IntPtr(IDC_ARROW));
        wcex.hbrBackground = new IntPtr(COLOR_WINDOW + 1);
        wcex.lpszMenuName = "";
        wcex.lpszClassName = CLASS_NAME;
        wcex.hIconSm = IntPtr.Zero;
 
        RegisterClassEx(ref wcex);
 
        IntPtr hWnd = CreateWindowEx(
            0,
            wcex.lpszClassName,
            WINDOW_NAME,
            WS_OVERLAPPEDWINDOW,
            CW_USEDEFAULT,
            CW_USEDEFAULT,
            640,
            480,
            IntPtr.Zero,
            IntPtr.Zero,
            wcex.hInstance,
            IntPtr.Zero);
 
        ShowWindow(hWnd, SW_SHOWDEFAULT);
        UpdateWindow(hWnd);
 
        MSG msg = new MSG();
        while (GetMessage(out msg, IntPtr.Zero, 0, 0) != 0)
        {
            TranslateMessage(ref msg);
            DispatchMessage(ref msg);
        }
 
        return (int)msg.wParam;
    }
 
    [STAThread]
    public static int Main()
    {
        return WinMain();
    }
}
"@
    Add-Type -Language CSharp -TypeDefinition $source -ReferencedAssemblies ("System.Drawing", "System.Windows.Forms" )
    [void][Hello]::Main()
EndTextBlock

    実行方法

    C:¥> uwsc /K hello.uws

    実行結果

    +------------------------------------------+
|Hello, World!                    [_][~][X]|
+------------------------------------------+
|Hello, Win32 GUI(UWSC) World!             |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
+------------------------------------------+

  3. Hello, Win32 GUI(Lua) World!

    Posted on 7月 16th, 2012 by cx20

    Win32 GUI(Lua)

    Win32 アプリケーションは Windows 標準 API である Win32 API を使用した Windows アプリケーションである。
    以下は Lua にて alien ライブラリを使用した Win32 GUI アプリケーション の例となっている。

    ソースコード

    hello.lua
    raw download
    require 'alien'
 
WS_OVERLAPPED       = 0x00000000
WS_CAPTION          = 0x00C00000
WS_SYSMENU          = 0x00080000
WS_THICKFRAME       = 0x00040000
WS_MINIMIZEBOX      = 0x00020000
WS_MAXIMIZEBOX      = 0x00010000 
WS_OVERLAPPEDWINDOW = WS_OVERLAPPED + WS_CAPTION + WS_SYSMENU + WS_THICKFRAME + WS_MINIMIZEBOX + WS_MAXIMIZEBOX
 
WM_DESTROY    = 0x0002
WM_SIZE       = 0x0005
WM_CLOSE      = 0x0010
WM_PAINT      = 0x000F
 
CW_USEDEFAULT = 0x80000000
SW_SHOWNORMAL = 1
 
BLACK_BRUSH   = 4
COLOR_WINDOW  = 5
 
POINTAPI = alien.defstruct{
    {"x", "long"};
    {"y", "long"};
}
 
MSG = alien.defstruct{
    {"hwnd", "pointer"};
    {"message", "uint"};
    {"wParam", "pointer"};
    {"lParam", "pointer"};
    {"time", "ulong"};
    {"x", "long"};
    {"y", "long"};
}
 
WNDCLASSEX = alien.defstruct{
    {"cbSize", "uint"};
    {"style", "uint"};
    {"lpfnWndProc", "callback"};
    {"cbClsExtra", "int"};
    {"cbWndExtra", "int"};
    {"hInstance", "pointer"};
    {"hIcon", "pointer"};
    {"hCursor", "pointer"};
    {"hbrBackground", "pointer"};
    {"lpszMenuName", "string"};
    {"lpszClassName", "string"};
    {"hIconSm", "pointer"};
}
 
RECT = alien.defstruct{
    {"Left", "long"};
    {"Top", "long"};
    {"Right", "long"};
    {"Bottom", "long"};
}
 
PAINTSTRUCT = alien.defstruct{
  {"hdc", "uint"};
  {"fErase", "int"};
  {"rcPaint_left", "long"};
  {"rcPaint_top", "long"};
  {"rcPaint_right", "long"};
  {"rcPaint_bottom", "long"};
  {"fRestore", "int"};
  {"fIncUpdate", "int"};
  --[[ {"rgbReserved", "byte[32]"}; ]]
}
PAINTSTRUCT.size = PAINTSTRUCT.size + 32
 
RegisterClassEx  = alien.user32.RegisterClassExA; RegisterClassEx:types{ ret = "ushort", abi = "stdcall"; "pointer" }
DestroyWindow    = alien.user32.DestroyWindow;    DestroyWindow:types{ ret = "int", abi = "stdcall"; "pointer" }
PostQuitMessage  = alien.user32.PostQuitMessage;  PostQuitMessage:types{ ret = "void", abi = "stdcall"; "int" }
DefWindowProc    = alien.user32.DefWindowProcA;   DefWindowProc:types{ ret = "long", abi = "stdcall"; "pointer", "uint", "uint", "long" }
GetMessage       = alien.user32.GetMessageA;      GetMessage:types{ ret = "int", abi = "stdcall"; "pointer", "pointer", "uint", "uint" }
TranslateMessage = alien.user32.TranslateMessage; TranslateMessage:types{ ret = "int", abi = "stdcall"; "pointer" }
DispatchMessage  = alien.user32.DispatchMessageA; DispatchMessage:types{ ret = "int", abi = "stdcall"; "pointer" }
CreateWindowEx   = alien.user32.CreateWindowExA;  CreateWindowEx:types{ ret = "pointer", abi = "stdcall"; "ulong", "string", "string", "ulong", "int", "int", "int", "int", "pointer", "pointer", "pointer" }
ShowWindow       = alien.user32.ShowWindow;       ShowWindow:types{ ret = "int", abi = "stdcall"; "pointer", "int" }
UpdateWindow     = alien.user32.UpdateWindow;     UpdateWindow:types{ ret = "int", abi = "stdcall"; "pointer" }
BeginPaint       = alien.user32.BeginPaint;       BeginPaint:types{ ret = "pointer", abi = "stdcall"; "pointer", "pointer" }
EndPaint         = alien.user32.EndPaint;         EndPaint:types{ ret = "int", abi = "stdcall"; "long", "pointer" }
TextOut          = alien.gdi32.TextOutA;          TextOut:types{ ret = "int", abi = "stdcall"; "pointer", "int", "int", "string", "int" }
GetStockObject   = alien.gdi32.GetStockObject;    GetStockObject:types{ ret = "pointer", abi = "stdcall"; "int" }
 
CLASS_NAME = "helloWindow"
WINDOW_NAME = "Hello, World"
 
function WndProc(hwnd, uMsg, wParam, lParam)
    ps = PAINTSTRUCT:new()
    strMessage = string.format("Hello, Win32 GUI(Lua) World!")
    if (uMsg == WM_DESTROY) then
        PostQuitMessage(0)
    elseif (uMsg == WM_PAINT) then
        hdc = BeginPaint( hwnd, ps() )
        TextOut( hdc, 0, 0, strMessage, string.len(strMessage) )
        EndPaint( hwnd, ps() )
    else
        return DefWindowProc(hwnd, uMsg, wParam, lParam)
    end
    return nil
end
 
function WinMain()
    wcex = WNDCLASSEX:new()
    wcex.cbSize        = WNDCLASSEX.size
    wcex.style         = 0
    wcex.lpfnWndProc   = alien.callback(WndProc, { ret = "long", abi = "stdcall"; "pointer", "uint", "uint", "long" })
    wcex.cbClsExtra    = 0
    wcex.cbWndExtra    = 0
    wcex.hInstance     = nil
    wcex.hIcon         = nil
    wcex.hCursor       = nil
    wcex.hbrBackground = GetStockObject(COLOR_WINDOW+1)
    wcex.lpszMenuName  = nil
    wcex.lpszClassName = CLASS_NAME
    wcex.hIconSm       = nil
 
    RegisterClassEx(wcex())
 
    hwnd = CreateWindowEx(
        0,
        CLASS_NAME,
        WINDOW_NAME,
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        640,
        480,
        nil,
        nil,
        nil)
 
    ShowWindow(hwnd, SW_SHOWNORMAL)
    UpdateWindow(hwnd)
 
    msg = MSG:new()
    msg_ptr = msg()
 
    while (GetMessage(msg_ptr, nil, 0, 0) ~= 0) do
        TranslateMessage(msg_ptr)
        DispatchMessage(msg_ptr)
    end
end
 
function main()
    WinMain()
end
 
main()

    実行方法

    C:¥> wlua hello.lua

    実行結果

    +------------------------------------------+
|Hello, World!                    [_][~][X]|
+------------------------------------------+
|Hello, Win32 GUI(Lua) World!              |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
+------------------------------------------+

  4. Hello, Win32 GUI(Python) World!

    Posted on 7月 15th, 2012 by cx20

    Win32 GUI(Python)

    Win32 アプリケーションは Windows 標準 API である Win32 API を使用した Windows アプリケーションである。
    以下は Python にて ctypes ライブラリを使用した Win32 GUI アプリケーション の例となっている。

    ソースコード

    hello.py
    raw download
    import win32con
import sys
from ctypes import *
 
WNDPROC = WINFUNCTYPE(c_long, c_int, c_uint, c_int, c_int)
 
NULL            = c_int(0)
 
WM_PAINT        = win32con.WM_PAINT
WM_DESTROY      = win32con.WM_DESTROY
CS_HREDRAW      = win32con.CS_HREDRAW
CS_VREDRAW      = win32con.CS_VREDRAW
IDI_APPLICATION = win32con.IDI_APPLICATION
IDC_ARROW       = win32con.IDC_ARROW
WHITE_BRUSH     = win32con.WHITE_BRUSH
WS_OVERLAPPEDWINDOW = win32con.WS_OVERLAPPEDWINDOW
CW_USEDEFAULT   = win32con.CW_USEDEFAULT
SW_SHOWNORMAL   = win32con.SW_SHOWNORMAL
SW_SHOW         = win32con.SW_SHOW
SW_SHOWDEFAULT  = win32con.SW_SHOWDEFAULT
 
GetModuleHandle = windll.kernel32.GetModuleHandleA
BeginPaint      = windll.user32.BeginPaint
EndPaint        = windll.user32.EndPaint
PostQuitMessage = windll.user32.PostQuitMessage
DefWindowProc   = windll.user32.DefWindowProcA
CreateWindowEx  = windll.user32.CreateWindowExA
CreateWindowEx.argtypes = [c_int, c_char_p, c_char_p, c_int, c_int, c_int, c_int, c_int, c_int, c_int, c_int, c_int]
LoadIcon        = windll.user32.LoadIconA
LoadCursor      = windll.user32.LoadCursorA
RegisterClass   = windll.user32.RegisterClassA
ShowWindow      = windll.user32.ShowWindow
UpdateWindow    = windll.user32.UpdateWindow
GetMessage      = windll.user32.GetMessageA
TranslateMessage = windll.user32.TranslateMessage
DispatchMessage = windll.user32.DispatchMessageA
TextOut         = windll.gdi32.TextOutA
GetStockObject  = windll.gdi32.GetStockObject
 
class POINT(Structure):
    _fields_ = [('x', c_long),
                ('y', c_long)]
 
class MSG(Structure):
    _fields_ = [('hwnd', c_int),
                ('message', c_uint),
                ('wParam', c_int),
                ('lParam', c_int),
                ('time', c_int),
                ('pt', POINT)]
 
class WNDCLASS(Structure):
    _fields_ = [('style', c_uint),
                ('lpfnWndProc', WNDPROC),
                ('cbClsExtra', c_int),
                ('cbWndExtra', c_int),
                ('hInstance', c_int),
                ('hIcon', c_int),
                ('hCursor', c_int),
                ('hbrBackground', c_int),
                ('lpszMenuName', c_char_p),
                ('lpszClassName', c_char_p)]
 
class RECT(Structure):
    _fields_ = [('left', c_long),
                ('top', c_long),
                ('right', c_long),
                ('bottom', c_long)]
 
class PAINTSTRUCT(Structure):
    _fields_ = [('hdc', c_int),
                ('fErase', c_int),
                ('rcPaint', RECT),
                ('fRestore', c_int),
                ('fIncUpdate', c_int),
                ('rgbReserved', c_char * 32)]
 
def WndProc(hwnd, message, wParam, lParam):
    strMessage = "Hello, Win32 GUI(Python) World!"
    if message == WM_PAINT:
        ps = PAINTSTRUCT()
        hdc = BeginPaint( hwnd, byref(ps) )
        TextOut( hdc, 0, 0, strMessage, len(strMessage) )
        EndPaint( hwnd, byref(ps) )
        return 0
    elif message == WM_DESTROY:
        PostQuitMessage(0)
        return 0
 
    return DefWindowProc(hwnd, message, wParam, lParam)
 
def WinMain():
    wndclass               = WNDCLASS()
    wndclass.style         = CS_HREDRAW | CS_VREDRAW
    wndclass.lpfnWndProc   = WNDPROC(WndProc)
    wndclass.cbClsExtra    = 0
    wndclass.cbWndExtra    = 0
    wndclass.hInstance     = GetModuleHandle(0)
    wndclass.hIcon         = LoadIcon(0, IDI_APPLICATION)
    wndclass.hCursor       = LoadCursor(0, IDC_ARROW)
    wndclass.hbrBackground = GetStockObject(WHITE_BRUSH)
    wndclass.lpszMenuName  = 0
    wndclass.lpszClassName = "helloWindow"
 
    RegisterClass(byref(wndclass))
 
    hwnd = CreateWindowEx(
        0,
        wndclass.lpszClassName,
        "Hello, World!",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        640,
        480,
        0,
        0,
        wndclass.hInstance,
        0)
 
    ShowWindow(hwnd, SW_SHOWDEFAULT)
    UpdateWindow(hwnd)
 
    msg = MSG()
    pMsg = pointer(msg)
 
    while GetMessage( pMsg, NULL, 0, 0 ) != 0:
        TranslateMessage(pMsg)
        DispatchMessage(pMsg)
 
    return msg.wParam
 
if __name__=='__main__':
    sys.exit(WinMain())

    実行方法

    C:¥> python hello.py

    実行結果

    +------------------------------------------+
|Hello, World!                    [_][~][X]|
+------------------------------------------+
|Hello, Win32 GUI(Python) World!           |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
+------------------------------------------+

  5. Hello, Win32 GUI(Ruby) World!

    Posted on 7月 14th, 2012 by cx20

    Win32 GUI(Ruby)

    Win32 アプリケーションは Windows 標準 API である Win32 API を使用した Windows アプリケーションである。
    以下は Ruby による Win32 GUI アプリケーション の例となっている。
    なお、Win32 の構造体の定義に CStruct ライブラリを使用している。

    ソースコード

    hello.rb
    raw download
    require 'win32/api'
require 'cstruct/win32struct'
 
include Win32
 
WS_VISIBLE      = 0x10000000
WS_CAPTION      = 0x00C00000
WS_SYSMENU      = 0x00080000
WS_MINIMIZEBOX  = 0x00020000
WS_MAXIMIZEBOX  = 0x00010000
WS_THICKFRAME   = 0x00040000
WS_OVERLAPPED   = 0x00000000
 
WS_OVERLAPPEDWINDOW = (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX)
 
WM_CREATE       = 0x0001
WM_DESTROY      = 0x0002
WM_PAINT        = 0x000F
WM_CLOSE        = 0x0010
WM_COMMAND      = 0x0111
 
CS_VREDRAW      = 0x0001
CS_HREDRAW      = 0x0002
COLOR_WINDOW    = 5
 
CW_USEDEFAULT   = -2147483648 #0x80000000
 
SW_SHOW         = 5
SW_SHOWDEFAULT  = 10
 
Memset          = API.new('memset', 'PLL', 'L', 'msvcrt')
LocalAlloc      = API.new('LocalAlloc', 'LL', 'L', 'kernel32')
GetModuleHandle = API.new('GetModuleHandle', 'P', 'L', 'kernel32')
RegisterClass   = API.new('RegisterClass', 'P', 'L', 'user32')
RegisterClassEx = API.new('RegisterClassEx', 'P', 'L', 'user32')
CloseWindow     = API.new('CloseWindow', 'L', 'B', 'user32')
CreateWindowEx  = API.new('CreateWindowEx', 'LPPLIIIILLLL', 'L', 'user32')
ShowWindow      = API.new('ShowWindow', 'LL', 'B', 'user32')
UpdateWindow    = API.new('UpdateWindow', 'L', 'B', 'user32')
BeginPaint      = API.new('BeginPaint', 'LP', 'L', 'user32')
EndPaint        = API.new('EndPaint', 'LP', 'L', 'user32')
PostQuitMessage = API.new('PostQuitMessage', 'I', 'V', 'user32')
DefWindowProc   = API.new('DefWindowProc', 'LLLL', 'L', 'user32')
GetMessage      = API.new('GetMessage', 'PLII', 'L', 'user32')
DispatchMessage = API.new('DispatchMessage', 'P', 'L', 'user32')
TranslateMessage = API.new('TranslateMessage', 'P', 'B', 'user32')
TextOut         = API.new('TextOut', 'LLLPL', 'B', 'gdi32' );
 
class POINT < Win32Struct
    LONG    :x
    LONG    :y
end
 
class MSG < Win32Struct
    uint32  :hwnd
    UINT    :message
    WPARAM  :wParam
    LPARAM  :lParam
    DWORD   :time
    POINT   :pt
end
 
class WNDCLASSA < Win32Struct
    UINT    :style
    uint32  :lpfnWndProc
    int32   :cbClsExtra
    int32   :cbWndExtra
    HINSTANCE   :hInstance
    HICON   :hIcon
    HCURSOR :hCursor
    HBRUSH  :hbrBackground
    LPCSTR  :lpszMenuName
    LPCSTR  :lpszClassName
end
 
class RECT < Win32Struct
    LONG    :left
    LONG    :top
    LONG    :right
    LONG    :bottom
end
 
class PAINTSTRUCT < Win32Struct
    HDC     :hdc
    BOOL    :fErase
    RECT    :rcPaint
    BOOL    :fRestore
    BOOL    :fIncUpdate
    BYTE    :rgbReserved,[32]
end
 
@window_proc = API::Callback.new('LLLL', 'I') do |hwnd, msg, wparam, lparam|
    ret = 0
    strMessage = "Hello, Win32 GUI(Ruby) World!"
    case msg
    when WM_PAINT
        ps  = PAINTSTRUCT.new
        hdc = BeginPaint.call(hwnd, ps.data)
        TextOut.call(hdc, 0, 0, strMessage, strMessage.length);
        EndPaint.call(hwnd, ps.data)
    when WM_DESTROY
        PostQuitMessage.call(0)
    else 
        ret = DefWindowProc.call(hwnd, msg, wparam, lparam)
    end
    ret
end
 
def alloc_string_buffer init_string, max_length
    buffer_pointer = LocalAlloc.call(0, max_length)
    buffer_addr = buffer_pointer
    Memset.call(buffer_addr, 0, max_length)
 
    init_string.each_byte do |byte|  
        Memset.call(buffer_pointer, byte, 1)
        buffer_pointer += 1
    end  
    buffer_addr
end
 
def WinMain instance, cmd_show
    msg = MSG.new
 
    wc = WNDCLASSA.new
    wc.style         = 0
    wc.lpfnWndProc   = @window_proc.address
    wc.cbClsExtra    = 0
    wc.cbWndExtra    = 0
    wc.hInstance     = instance
    wc.hIcon         = 0
    wc.hCursor       = 0
    wc.hbrBackground = (COLOR_WINDOW+1)
    wc.lpszMenuName  = 0
    wc.lpszClassName = alloc_string_buffer 'helloWindow', 256
 
    RegisterClass.call(wc.data)
 
    hwnd = CreateWindowEx.call(
        0,
        "helloWindow",
        "Hello, World!",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        640,
        480,
        0,
        0,
        wc.hInstance,
        0
    )
 
    ShowWindow.call(hwnd, cmd_show)
    UpdateWindow.call(hwnd)
 
    while(GetMessage.call(msg.data, 0, 0, 0) > 0)
        TranslateMessage.call(msg.data)
        DispatchMessage.call(msg.data)
    end
 
end
 
def main
    instance = GetModuleHandle.call(0)
    WinMain instance, SW_SHOW
end
 
main

    ライブラリ導入方法

    C:¥> gem install cstruct

    実行方法

    C:¥> ruby hello.rb

    実行結果

    +------------------------------------------+
|Hello, World!                    [_][~][X]|
+------------------------------------------+
|Hello, Win32 GUI(Ruby) World!             |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
+------------------------------------------+

  6. Hello, Win32 GUI(Perl) World!

    Posted on 7月 13th, 2012 by cx20

    Win32 GUI(Perl)

    Win32 アプリケーションは Windows 標準 API である Win32 API を使用した Windows アプリケーションである。
    以下は Perl にて Win32::GUI ライブラリを使用した Win32 GUI アプリケーション の例となっている。

    ソースコード

    hello.pl
    raw download
    use Win32::GUI();
 
$main = Win32::GUI::Window->new( 
    -text => "Hello, world" );
 
$label = $main->AddLabel( 
    -text => "Hello, Win32 GUI(Perl) World!" );
 
$main->Resize(640, 480);
$main->Show();
 
Win32::GUI::Dialog();

    実行方法

    C:¥> perl hello.pl

    実行結果

    +------------------------------------------+
|Hello, World!                    [_][~][X]|
+------------------------------------------+
|Hello, Win32 GUI(Perl) World!             |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
+------------------------------------------+

  7. Hello, Win32 GUI(PowerShell) World!

    Posted on 7月 12th, 2012 by cx20

    Win32 GUI(PowerShell)

    Win32 アプリケーションは Windows 標準 API である Win32 API を使用した Windows アプリケーションである。
    以下は PowerShell にて Add-Type コマンドレット経由で C# を呼び出すことにより Win32 API を使用した GUI アプリケーション の例となっている。

    ソースコード

    Hello.ps1
    raw download
    $source = @"
using System;
using System.Runtime.InteropServices;
 
public class Hello
{
    [StructLayout(LayoutKind.Sequential)]
    struct POINT
    {
        public int x;
        public int y;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct MSG
    {
        public IntPtr hwnd;
        public uint message;
        public IntPtr wParam;
        public IntPtr lParam;
        public uint time;
        public POINT pt;
    }
 
    delegate IntPtr WndProcDelgate(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam);
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
    struct WNDCLASSEX
    {
        public uint cbSize;
        public uint style;
        public WndProcDelgate lpfnWndProc;
        public Int32 cbClsExtra;
        public Int32 cbWndExtra;
        public IntPtr hInstance;
        public IntPtr hIcon;
        public IntPtr hCursor;
        public IntPtr hbrBackground;
        public string lpszMenuName;
        public string lpszClassName;
        public IntPtr hIconSm;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct RECT
    {
        public int Left;
        public int Top;
        public int Right;
        public int Bottom;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct PAINTSTRUCT
    {
        public IntPtr hdc;
        public int fErase;
        public RECT rcPaint;
        public int fRestore;
        public int fIncUpdate;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
        public byte[] rgbReserved;
    }
 
    const uint WS_OVERLAPPED = 0x00000000;
    const uint WS_POPUP = 0x80000000;
    const uint WS_CHILD = 0x40000000;
    const uint WS_MINIMIZE = 0x20000000;
    const uint WS_VISIBLE = 0x10000000;
    const uint WS_DISABLED = 0x08000000;
    const uint WS_CLIPSIBLINGS = 0x04000000;
    const uint WS_CLIPCHILDREN = 0x02000000;
    const uint WS_MAXIMIZE = 0x01000000;
    const uint WS_CAPTION = 0x00C00000; // WS_BORDER | WS_DLGFRAME
    const uint WS_BORDER = 0x00800000;
    const uint WS_DLGFRAME = 0x00400000;
    const uint WS_VSCROLL = 0x00200000;
    const uint WS_HSCROLL = 0x00100000;
    const uint WS_SYSMENU = 0x00080000;
    const uint WS_THICKFRAME = 0x00040000;
    const uint WS_GROUP = 0x00020000;
    const uint WS_TABSTOP = 0x00010000;
 
    const uint WS_MINIMIZEBOX = 0x00020000;
    const uint WS_MAXIMIZEBOX = 0x00010000;
 
    const uint WS_TILED = WS_OVERLAPPED;
    const uint WS_ICONIC = WS_MINIMIZE;
    const uint WS_SIZEBOX = WS_THICKFRAME;
    const uint WS_TILEDWINDOW = WS_OVERLAPPEDWINDOW;
 
    const uint WS_OVERLAPPEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX;
    const uint WS_POPUPWINDOW = WS_POPUP | WS_BORDER | WS_SYSMENU;
    const uint WS_CHILDWINDOW = WS_CHILD;
 
    const uint WM_CREATE = 0x0001;
    const uint WM_DESTROY = 0x0002;
    const uint WM_PAINT = 0x000F;
    const uint WM_CLOSE = 0x0010;
    const uint WM_COMMAND = 0x0111;
 
    const uint COLOR_WINDOW = 5;
    const uint COLOR_BTNFACE = 15;
 
    const uint CS_VREDRAW = 0x0001;
    const uint CS_HREDRAW = 0x0002;
 
    const int CW_USEDEFAULT = -2147483648; // ((uint)0x80000000)
 
    const uint SW_SHOWDEFAULT = 10;
 
    const int IDI_APPLICATION = 32512;
    const int IDC_ARROW = 32512;
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr LoadCursor(IntPtr hInstance, IntPtr lpCursorName);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr LoadIcon(IntPtr hInstance, IntPtr lpIconName);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern short RegisterClassEx(ref WNDCLASSEX pcWndClassEx);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr CreateWindowEx(uint dwExStyle, string lpClassName, string lpWindowName, uint dwStyle, int x, int y, int nWidth, int nHeight, IntPtr hWndParent, IntPtr hMenu, IntPtr hInstance, IntPtr lpParam);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern bool ShowWindow(IntPtr hWnd, uint nCmdShow);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern bool UpdateWindow(IntPtr hWnd);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern int GetMessage(out MSG lpMsg, IntPtr hWnd, uint wMsgFilterMin, uint wMsgFilterMax);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern int TranslateMessage([In] ref MSG lpMsg);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr DispatchMessage([In] ref MSG lpMsg);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern void PostQuitMessage(int nExitCode);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr DefWindowProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr BeginPaint(IntPtr hWnd, out PAINTSTRUCT lpPaint);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr EndPaint(IntPtr hWnd, ref PAINTSTRUCT lpPaint);
 
    [DllImport("gdi32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr TextOut( IntPtr hdc, int x, int y, string lpString, int nCount );
 
    [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr GetModuleHandle(string lpModuleName);
 
    static IntPtr WndProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam)
    {
        PAINTSTRUCT ps = new PAINTSTRUCT();
        IntPtr hdc;
        string strMessage = "Hello, Win32 GUI(PowerShell) World!";
 
        switch (uMsg)
        {
            case WM_PAINT:
                hdc = BeginPaint( hWnd, out ps );
                TextOut( hdc, 0, 0, strMessage, strMessage.Length );
                EndPaint( hWnd, ref ps );
                break;
            case WM_DESTROY:
                PostQuitMessage(0);
                break;
            default:
                return DefWindowProc(hWnd, uMsg, wParam, lParam);
        }
 
        return IntPtr.Zero;
    }
 
    static int WinMain()
    {
        IntPtr hInstance = Marshal.GetHINSTANCE(typeof(Hello).Module);
        const string CLASS_NAME = "helloWindow";
        const string WINDOW_NAME = "Hello, World!";
 
        WNDCLASSEX wcex = new WNDCLASSEX();
        wcex.cbSize = (uint)Marshal.SizeOf(wcex);
        wcex.style = CS_HREDRAW | CS_VREDRAW;
        wcex.lpfnWndProc = new WndProcDelgate(WndProc);
        wcex.cbClsExtra = 0;
        wcex.cbWndExtra = 0;
        wcex.hInstance = hInstance;
        wcex.hIcon = LoadIcon(hInstance, new IntPtr(IDI_APPLICATION));
        wcex.hCursor = LoadIcon(hInstance, new IntPtr(IDC_ARROW));
        wcex.hbrBackground = new IntPtr(COLOR_WINDOW + 1);
        wcex.lpszMenuName = "";
        wcex.lpszClassName = CLASS_NAME;
        wcex.hIconSm = IntPtr.Zero;
 
        RegisterClassEx(ref wcex);
 
        IntPtr hWnd = CreateWindowEx(
            0,
            wcex.lpszClassName,
            WINDOW_NAME,
            WS_OVERLAPPEDWINDOW,
            CW_USEDEFAULT,
            CW_USEDEFAULT,
            640,
            480,
            IntPtr.Zero,
            IntPtr.Zero,
            wcex.hInstance,
            IntPtr.Zero);
 
        ShowWindow(hWnd, SW_SHOWDEFAULT);
        UpdateWindow(hWnd);
 
        MSG msg = new MSG();
        while (GetMessage(out msg, IntPtr.Zero, 0, 0) != 0)
        {
            TranslateMessage(ref msg);
            DispatchMessage(ref msg);
        }
 
        return (int)msg.wParam;
    }
 
    [STAThread]
    public static int Main()
    {
        return WinMain();
    }
}
"@
Add-Type -Language CSharp -TypeDefinition $source -ReferencedAssemblies ("System.Drawing", "System.Windows.Forms" )
[void][Hello]::Main()

    実行方法

    C:¥> powershell -file Hello.ps1

    実行結果

    +------------------------------------------+
|Hello, World!                    [_][~][X]|
+------------------------------------------+
|Hello, Win32 GUI(PowerShell) World!       |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
+------------------------------------------+

  8. Hello, Win32 GUI(MSIL) World!

    Posted on 7月 11th, 2012 by cx20

    Win32 GUI(MSIL)

    Win32 アプリケーションは Windows 標準 API である Win32 API を使用した Windows アプリケーションである。
    以下は MSIL において Win32 API を使用した GUI アプリケーション の例となっている。

    ソースコード

    Hello.il
    raw download
    //  Microsoft (R) .NET Framework IL Disassembler.  Version 4.0.30319.1
//  Copyright (c) Microsoft Corporation. All rights reserved.
 
// Metadata version: v2.0.50727
.module extern user32.dll
.module extern gdi32.dll
.module extern kernel32.dll
.assembly extern mscorlib
{
  .publickeytoken = (B7 7A 5C 56 19 34 E0 89 )                         // .zV.4..
  .ver 2:0:0:0
}
.assembly Hello
{
  .custom instance void [mscorlib]System.Runtime.CompilerServices.CompilationRelaxationsAttribute::.ctor(int32) = ( 01 00 08 00 00 00 00 00 ) 
  .custom instance void [mscorlib]System.Runtime.CompilerServices.RuntimeCompatibilityAttribute::.ctor() = ( 01 00 01 00 54 02 16 57 72 61 70 4E 6F 6E 45 78   // ....T..WrapNonEx
                                                                                                             63 65 70 74 69 6F 6E 54 68 72 6F 77 73 01 )       // ceptionThrows.
  .hash algorithm 0x00008004
  .ver 0:0:0:0
}
.module Hello.exe
// MVID: {BEAF0F56-F7B6-4F51-B26E-C0D153A452A2}
.imagebase 0x00400000
.file alignment 0x00000200
.stackreserve 0x00100000
.subsystem 0x0002       // WINDOWS_GUI
.corflags 0x00000001    //  ILONLY
// Image base: 0x00410000
 
 
// =============== CLASS MEMBERS DECLARATION ===================
 
.class private auto ansi beforefieldinit Hello
       extends [mscorlib]System.Object
{
  .class sequential ansi sealed nested private beforefieldinit POINT
         extends [mscorlib]System.ValueType
  {
    .field public int32 x
    .field public int32 y
  } // end of class POINT
 
  .class sequential ansi sealed nested private beforefieldinit MSG
         extends [mscorlib]System.ValueType
  {
    .field public native int hwnd
    .field public uint32 message
    .field public native int wParam
    .field public native int lParam
    .field public uint32 time
    .field public valuetype Hello/POINT pt
  } // end of class MSG
 
  .class auto ansi sealed nested private WndProcDelgate
         extends [mscorlib]System.MulticastDelegate
  {
    .method public hidebysig specialname rtspecialname 
            instance void  .ctor(object 'object',
                                 native int 'method') runtime managed
    {
    } // end of method WndProcDelgate::.ctor
 
    .method public hidebysig newslot virtual 
            instance native int  Invoke(native int hWnd,
                                        uint32 uMsg,
                                        native int wParam,
                                        native int lParam) runtime managed
    {
    } // end of method WndProcDelgate::Invoke
 
    .method public hidebysig newslot virtual 
            instance class [mscorlib]System.IAsyncResult 
            BeginInvoke(native int hWnd,
                        uint32 uMsg,
                        native int wParam,
                        native int lParam,
                        class [mscorlib]System.AsyncCallback callback,
                        object 'object') runtime managed
    {
    } // end of method WndProcDelgate::BeginInvoke
 
    .method public hidebysig newslot virtual 
            instance native int  EndInvoke(class [mscorlib]System.IAsyncResult result) runtime managed
    {
    } // end of method WndProcDelgate::EndInvoke
 
  } // end of class WndProcDelgate
 
  .class sequential autochar sealed nested private beforefieldinit WNDCLASSEX
         extends [mscorlib]System.ValueType
  {
    .field public uint32 cbSize
    .field public uint32 style
    .field public class Hello/WndProcDelgate lpfnWndProc
    .field public int32 cbClsExtra
    .field public int32 cbWndExtra
    .field public native int hInstance
    .field public native int hIcon
    .field public native int hCursor
    .field public native int hbrBackground
    .field public string lpszMenuName
    .field public string lpszClassName
    .field public native int hIconSm
  } // end of class WNDCLASSEX
 
  .class sequential ansi sealed nested private beforefieldinit RECT
         extends [mscorlib]System.ValueType
  {
    .field public int32 Left
    .field public int32 Top
    .field public int32 Right
    .field public int32 Bottom
  } // end of class RECT
 
  .class sequential ansi sealed nested private beforefieldinit PAINTSTRUCT
         extends [mscorlib]System.ValueType
  {
    .field public native int hdc
    .field public int32 fErase
    .field public valuetype Hello/RECT rcPaint
    .field public int32 fRestore
    .field public int32 fIncUpdate
    .field public  marshal( fixed array [32]) uint8[] rgbReserved
  } // end of class PAINTSTRUCT
 
  .field private static literal uint32 WS_OVERLAPPED = uint32(0x00000000)
  .field private static literal uint32 WS_POPUP = uint32(0x80000000)
  .field private static literal uint32 WS_CHILD = uint32(0x40000000)
  .field private static literal uint32 WS_MINIMIZE = uint32(0x20000000)
  .field private static literal uint32 WS_VISIBLE = uint32(0x10000000)
  .field private static literal uint32 WS_DISABLED = uint32(0x08000000)
  .field private static literal uint32 WS_CLIPSIBLINGS = uint32(0x04000000)
  .field private static literal uint32 WS_CLIPCHILDREN = uint32(0x02000000)
  .field private static literal uint32 WS_MAXIMIZE = uint32(0x01000000)
  .field private static literal uint32 WS_CAPTION = uint32(0x00C00000)
  .field private static literal uint32 WS_BORDER = uint32(0x00800000)
  .field private static literal uint32 WS_DLGFRAME = uint32(0x00400000)
  .field private static literal uint32 WS_VSCROLL = uint32(0x00200000)
  .field private static literal uint32 WS_HSCROLL = uint32(0x00100000)
  .field private static literal uint32 WS_SYSMENU = uint32(0x00080000)
  .field private static literal uint32 WS_THICKFRAME = uint32(0x00040000)
  .field private static literal uint32 WS_GROUP = uint32(0x00020000)
  .field private static literal uint32 WS_TABSTOP = uint32(0x00010000)
  .field private static literal uint32 WS_MINIMIZEBOX = uint32(0x00020000)
  .field private static literal uint32 WS_MAXIMIZEBOX = uint32(0x00010000)
  .field private static literal uint32 WS_TILED = uint32(0x00000000)
  .field private static literal uint32 WS_ICONIC = uint32(0x20000000)
  .field private static literal uint32 WS_SIZEBOX = uint32(0x00040000)
  .field private static literal uint32 WS_TILEDWINDOW = uint32(0x00CF0000)
  .field private static literal uint32 WS_OVERLAPPEDWINDOW = uint32(0x00CF0000)
  .field private static literal uint32 WS_POPUPWINDOW = uint32(0x80880000)
  .field private static literal uint32 WS_CHILDWINDOW = uint32(0x40000000)
  .field private static literal uint32 WM_CREATE = uint32(0x00000001)
  .field private static literal uint32 WM_DESTROY = uint32(0x00000002)
  .field private static literal uint32 WM_PAINT = uint32(0x0000000F)
  .field private static literal uint32 WM_CLOSE = uint32(0x00000010)
  .field private static literal uint32 WM_COMMAND = uint32(0x00000111)
  .field private static literal uint32 COLOR_WINDOW = uint32(0x00000005)
  .field private static literal uint32 COLOR_BTNFACE = uint32(0x0000000F)
  .field private static literal uint32 CS_VREDRAW = uint32(0x00000001)
  .field private static literal uint32 CS_HREDRAW = uint32(0x00000002)
  .field private static literal int32 CW_USEDEFAULT = int32(0x80000000)
  .field private static literal uint32 SW_SHOWDEFAULT = uint32(0x0000000A)
  .field private static literal int32 IDI_APPLICATION = int32(0x00007F00)
  .field private static literal int32 IDC_ARROW = int32(0x00007F00)
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          native int  LoadCursor(native int hInstance,
                                 native int lpCursorName) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          native int  LoadIcon(native int hInstance,
                               native int lpIconName) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          int16  RegisterClassEx(valuetype Hello/WNDCLASSEX& pcWndClassEx) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          native int  CreateWindowEx(uint32 dwExStyle,
                                     string lpClassName,
                                     string lpWindowName,
                                     uint32 dwStyle,
                                     int32 x,
                                     int32 y,
                                     int32 nWidth,
                                     int32 nHeight,
                                     native int hWndParent,
                                     native int hMenu,
                                     native int hInstance,
                                     native int lpParam) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          bool  ShowWindow(native int hWnd,
                           uint32 nCmdShow) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          bool  UpdateWindow(native int hWnd) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          int32  GetMessage([out] valuetype Hello/MSG& lpMsg,
                            native int hWnd,
                            uint32 wMsgFilterMin,
                            uint32 wMsgFilterMax) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          int32  TranslateMessage([in] valuetype Hello/MSG& lpMsg) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          native int  DispatchMessage([in] valuetype Hello/MSG& lpMsg) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          void  PostQuitMessage(int32 nExitCode) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          native int  DefWindowProc(native int hWnd,
                                    uint32 uMsg,
                                    native int wParam,
                                    native int lParam) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          native int  BeginPaint(native int hWnd,
                                 [out] valuetype Hello/PAINTSTRUCT& lpPaint) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("user32.dll" autochar winapi) 
          native int  EndPaint(native int hWnd,
                               valuetype Hello/PAINTSTRUCT& lpPaint) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("gdi32.dll" autochar winapi) 
          native int  TextOut(native int hdc,
                              int32 x,
                              int32 y,
                              string lpString,
                              int32 nCount) cil managed preservesig
  {
  }
  .method private hidebysig static pinvokeimpl("kernel32.dll" autochar winapi) 
          native int  GetModuleHandle(string lpModuleName) cil managed preservesig
  {
  }
  .method private hidebysig static native int 
          WndProc(native int hWnd,
                  uint32 uMsg,
                  native int wParam,
                  native int lParam) cil managed
  {
    // コード サイズ       98 (0x62)
    .maxstack  5
    .locals init (valuetype Hello/PAINTSTRUCT V_0,
             native int V_1,
             string V_2,
             native int V_3,
             uint32 V_4)
    IL_0000:  nop
    IL_0001:  ldloca.s   V_0
    IL_0003:  initobj    Hello/PAINTSTRUCT
    IL_0009:  ldstr      "Hello, Win32 GUI(MSIL) World!"
    IL_000e:  stloc.2
    IL_000f:  ldarg.1
    IL_0010:  stloc.s    V_4
    IL_0012:  ldloc.s    V_4
    IL_0014:  ldc.i4.2
    IL_0015:  beq.s      IL_0043
 
    IL_0017:  ldloc.s    V_4
    IL_0019:  ldc.i4.s   15
    IL_001b:  beq.s      IL_001f
 
    IL_001d:  br.s       IL_004c
 
    IL_001f:  ldarg.0
    IL_0020:  ldloca.s   V_0
    IL_0022:  call       native int Hello::BeginPaint(native int,
                                                      valuetype Hello/PAINTSTRUCT&)
    IL_0027:  stloc.1
    IL_0028:  ldloc.1
    IL_0029:  ldc.i4.0
    IL_002a:  ldc.i4.0
    IL_002b:  ldloc.2
    IL_002c:  ldloc.2
    IL_002d:  callvirt   instance int32 [mscorlib]System.String::get_Length()
    IL_0032:  call       native int Hello::TextOut(native int,
                                                   int32,
                                                   int32,
                                                   string,
                                                   int32)
    IL_0037:  pop
    IL_0038:  ldarg.0
    IL_0039:  ldloca.s   V_0
    IL_003b:  call       native int Hello::EndPaint(native int,
                                                    valuetype Hello/PAINTSTRUCT&)
    IL_0040:  pop
    IL_0041:  br.s       IL_0058
 
    IL_0043:  ldc.i4.0
    IL_0044:  call       void Hello::PostQuitMessage(int32)
    IL_0049:  nop
    IL_004a:  br.s       IL_0058
 
    IL_004c:  ldarg.0
    IL_004d:  ldarg.1
    IL_004e:  ldarg.2
    IL_004f:  ldarg.3
    IL_0050:  call       native int Hello::DefWindowProc(native int,
                                                         uint32,
                                                         native int,
                                                         native int)
    IL_0055:  stloc.3
    IL_0056:  br.s       IL_0060
 
    IL_0058:  ldsfld     native int [mscorlib]System.IntPtr::Zero
    IL_005d:  stloc.3
    IL_005e:  br.s       IL_0060
 
    IL_0060:  ldloc.3
    IL_0061:  ret
  } // end of method Hello::WndProc
 
  .method private hidebysig static int32 
          WinMain(string[] args) cil managed
  {
    // コード サイズ       358 (0x166)
    .maxstack  12
    .locals init (native int V_0,
             valuetype Hello/WNDCLASSEX V_1,
             native int V_2,
             valuetype Hello/MSG V_3,
             int32 V_4,
             bool V_5)
    IL_0000:  nop
    IL_0001:  ldtoken    Hello
    IL_0006:  call       class [mscorlib]System.Type [mscorlib]System.Type::GetTypeFromHandle(valuetype [mscorlib]System.RuntimeTypeHandle)
    IL_000b:  callvirt   instance class [mscorlib]System.Reflection.Module [mscorlib]System.Type::get_Module()
    IL_0010:  call       native int [mscorlib]System.Runtime.InteropServices.Marshal::GetHINSTANCE(class [mscorlib]System.Reflection.Module)
    IL_0015:  stloc.0
    IL_0016:  ldloca.s   V_1
    IL_0018:  initobj    Hello/WNDCLASSEX
    IL_001e:  ldloca.s   V_1
    IL_0020:  ldloc.1
    IL_0021:  box        Hello/WNDCLASSEX
    IL_0026:  call       int32 [mscorlib]System.Runtime.InteropServices.Marshal::SizeOf(object)
    IL_002b:  stfld      uint32 Hello/WNDCLASSEX::cbSize
    IL_0030:  ldloca.s   V_1
    IL_0032:  ldc.i4.3
    IL_0033:  stfld      uint32 Hello/WNDCLASSEX::style
    IL_0038:  ldloca.s   V_1
    IL_003a:  ldnull
    IL_003b:  ldftn      native int Hello::WndProc(native int,
                                                   uint32,
                                                   native int,
                                                   native int)
    IL_0041:  newobj     instance void Hello/WndProcDelgate::.ctor(object,
                                                                   native int)
    IL_0046:  stfld      class Hello/WndProcDelgate Hello/WNDCLASSEX::lpfnWndProc
    IL_004b:  ldloca.s   V_1
    IL_004d:  ldc.i4.0
    IL_004e:  stfld      int32 Hello/WNDCLASSEX::cbClsExtra
    IL_0053:  ldloca.s   V_1
    IL_0055:  ldc.i4.0
    IL_0056:  stfld      int32 Hello/WNDCLASSEX::cbWndExtra
    IL_005b:  ldloca.s   V_1
    IL_005d:  ldloc.0
    IL_005e:  stfld      native int Hello/WNDCLASSEX::hInstance
    IL_0063:  ldloca.s   V_1
    IL_0065:  ldloc.0
    IL_0066:  ldc.i4     0x7f00
    IL_006b:  newobj     instance void [mscorlib]System.IntPtr::.ctor(int32)
    IL_0070:  call       native int Hello::LoadIcon(native int,
                                                    native int)
    IL_0075:  stfld      native int Hello/WNDCLASSEX::hIcon
    IL_007a:  ldloca.s   V_1
    IL_007c:  ldloc.0
    IL_007d:  ldc.i4     0x7f00
    IL_0082:  newobj     instance void [mscorlib]System.IntPtr::.ctor(int32)
    IL_0087:  call       native int Hello::LoadIcon(native int,
                                                    native int)
    IL_008c:  stfld      native int Hello/WNDCLASSEX::hCursor
    IL_0091:  ldloca.s   V_1
    IL_0093:  ldc.i4.6
    IL_0094:  conv.i8
    IL_0095:  newobj     instance void [mscorlib]System.IntPtr::.ctor(int64)
    IL_009a:  stfld      native int Hello/WNDCLASSEX::hbrBackground
    IL_009f:  ldloca.s   V_1
    IL_00a1:  ldstr      ""
    IL_00a6:  stfld      string Hello/WNDCLASSEX::lpszMenuName
    IL_00ab:  ldloca.s   V_1
    IL_00ad:  ldstr      "helloWindow"
    IL_00b2:  stfld      string Hello/WNDCLASSEX::lpszClassName
    IL_00b7:  ldloca.s   V_1
    IL_00b9:  ldsfld     native int [mscorlib]System.IntPtr::Zero
    IL_00be:  stfld      native int Hello/WNDCLASSEX::hIconSm
    IL_00c3:  ldloca.s   V_1
    IL_00c5:  call       int16 Hello::RegisterClassEx(valuetype Hello/WNDCLASSEX&)
    IL_00ca:  pop
    IL_00cb:  ldc.i4.0
    IL_00cc:  ldloca.s   V_1
    IL_00ce:  ldfld      string Hello/WNDCLASSEX::lpszClassName
    IL_00d3:  ldstr      "Hello, World!"
    IL_00d8:  ldc.i4     0xcf0000
    IL_00dd:  ldc.i4     0x80000000
    IL_00e2:  ldc.i4     0x80000000
    IL_00e7:  ldc.i4     0x280
    IL_00ec:  ldc.i4     0x1e0
    IL_00f1:  ldsfld     native int [mscorlib]System.IntPtr::Zero
    IL_00f6:  ldsfld     native int [mscorlib]System.IntPtr::Zero
    IL_00fb:  ldloca.s   V_1
    IL_00fd:  ldfld      native int Hello/WNDCLASSEX::hInstance
    IL_0102:  ldsfld     native int [mscorlib]System.IntPtr::Zero
    IL_0107:  call       native int Hello::CreateWindowEx(uint32,
                                                          string,
                                                          string,
                                                          uint32,
                                                          int32,
                                                          int32,
                                                          int32,
                                                          int32,
                                                          native int,
                                                          native int,
                                                          native int,
                                                          native int)
    IL_010c:  stloc.2
    IL_010d:  ldloc.2
    IL_010e:  ldc.i4.s   10
    IL_0110:  call       bool Hello::ShowWindow(native int,
                                                uint32)
    IL_0115:  pop
    IL_0116:  ldloc.2
    IL_0117:  call       bool Hello::UpdateWindow(native int)
    IL_011c:  pop
    IL_011d:  ldloca.s   V_3
    IL_011f:  initobj    Hello/MSG
    IL_0125:  br.s       IL_0139
 
    IL_0127:  nop
    IL_0128:  ldloca.s   V_3
    IL_012a:  call       int32 Hello::TranslateMessage(valuetype Hello/MSG&)
    IL_012f:  pop
    IL_0130:  ldloca.s   V_3
    IL_0132:  call       native int Hello::DispatchMessage(valuetype Hello/MSG&)
    IL_0137:  pop
    IL_0138:  nop
    IL_0139:  ldloca.s   V_3
    IL_013b:  ldsfld     native int [mscorlib]System.IntPtr::Zero
    IL_0140:  ldc.i4.0
    IL_0141:  ldc.i4.0
    IL_0142:  call       int32 Hello::GetMessage(valuetype Hello/MSG&,
                                                 native int,
                                                 uint32,
                                                 uint32)
    IL_0147:  ldc.i4.0
    IL_0148:  ceq
    IL_014a:  ldc.i4.0
    IL_014b:  ceq
    IL_014d:  stloc.s    V_5
    IL_014f:  ldloc.s    V_5
    IL_0151:  brtrue.s   IL_0127
 
    IL_0153:  ldloca.s   V_3
    IL_0155:  ldfld      native int Hello/MSG::wParam
    IL_015a:  call       int32 [mscorlib]System.IntPtr::op_Explicit(native int)
    IL_015f:  stloc.s    V_4
    IL_0161:  br.s       IL_0163
 
    IL_0163:  ldloc.s    V_4
    IL_0165:  ret
  } // end of method Hello::WinMain
 
  .method private hidebysig static int32 
          Main(string[] args) cil managed
  {
    .entrypoint
    .custom instance void [mscorlib]System.STAThreadAttribute::.ctor() = ( 01 00 00 00 ) 
    // コード サイズ       12 (0xc)
    .maxstack  1
    .locals init (int32 V_0)
    IL_0000:  nop
    IL_0001:  ldarg.0
    IL_0002:  call       int32 Hello::WinMain(string[])
    IL_0007:  stloc.0
    IL_0008:  br.s       IL_000a
 
    IL_000a:  ldloc.0
    IL_000b:  ret
  } // end of method Hello::Main
 
  .method public hidebysig specialname rtspecialname 
          instance void  .ctor() cil managed
  {
    // コード サイズ       7 (0x7)
    .maxstack  8
    IL_0000:  ldarg.0
    IL_0001:  call       instance void [mscorlib]System.Object::.ctor()
    IL_0006:  ret
  } // end of method Hello::.ctor
 
} // end of class Hello
 
// =============================================================
 
// *********** 逆アセンブルが完了しました ***********************
// 警告: Win32 リソース ファイル Hello.res を作成しました。

    上記コードは、以下の C# の実行ファイルを ildadm.exe で逆アセンブルしたものである。

    ソースコード

    Hello.cs
    raw download
    using System;
using System.Runtime.InteropServices;
 
class Hello
{
    [StructLayout(LayoutKind.Sequential)]
    struct POINT
    {
        public int x;
        public int y;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct MSG
    {
        public IntPtr hwnd;
        public uint message;
        public IntPtr wParam;
        public IntPtr lParam;
        public uint time;
        public POINT pt;
    }
 
    delegate IntPtr WndProcDelgate(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam);
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
    struct WNDCLASSEX
    {
        public uint cbSize;
        public uint style;
        public WndProcDelgate lpfnWndProc;
        public Int32 cbClsExtra;
        public Int32 cbWndExtra;
        public IntPtr hInstance;
        public IntPtr hIcon;
        public IntPtr hCursor;
        public IntPtr hbrBackground;
        public string lpszMenuName;
        public string lpszClassName;
        public IntPtr hIconSm;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct RECT
    {
        public int Left;
        public int Top;
        public int Right;
        public int Bottom;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct PAINTSTRUCT
    {
        public IntPtr hdc;
        public int fErase;
        public RECT rcPaint;
        public int fRestore;
        public int fIncUpdate;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
        public byte[] rgbReserved;
    }
 
    const uint WS_OVERLAPPED = 0x00000000;
    const uint WS_POPUP = 0x80000000;
    const uint WS_CHILD = 0x40000000;
    const uint WS_MINIMIZE = 0x20000000;
    const uint WS_VISIBLE = 0x10000000;
    const uint WS_DISABLED = 0x08000000;
    const uint WS_CLIPSIBLINGS = 0x04000000;
    const uint WS_CLIPCHILDREN = 0x02000000;
    const uint WS_MAXIMIZE = 0x01000000;
    const uint WS_CAPTION = 0x00C00000; // WS_BORDER | WS_DLGFRAME
    const uint WS_BORDER = 0x00800000;
    const uint WS_DLGFRAME = 0x00400000;
    const uint WS_VSCROLL = 0x00200000;
    const uint WS_HSCROLL = 0x00100000;
    const uint WS_SYSMENU = 0x00080000;
    const uint WS_THICKFRAME = 0x00040000;
    const uint WS_GROUP = 0x00020000;
    const uint WS_TABSTOP = 0x00010000;
 
    const uint WS_MINIMIZEBOX = 0x00020000;
    const uint WS_MAXIMIZEBOX = 0x00010000;
 
    const uint WS_TILED = WS_OVERLAPPED;
    const uint WS_ICONIC = WS_MINIMIZE;
    const uint WS_SIZEBOX = WS_THICKFRAME;
    const uint WS_TILEDWINDOW = WS_OVERLAPPEDWINDOW;
 
    const uint WS_OVERLAPPEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX;
    const uint WS_POPUPWINDOW = WS_POPUP | WS_BORDER | WS_SYSMENU;
    const uint WS_CHILDWINDOW = WS_CHILD;
 
    const uint WM_CREATE = 0x0001;
    const uint WM_DESTROY = 0x0002;
    const uint WM_PAINT = 0x000F;
    const uint WM_CLOSE = 0x0010;
    const uint WM_COMMAND = 0x0111;
 
    const uint COLOR_WINDOW = 5;
    const uint COLOR_BTNFACE = 15;
 
    const uint CS_VREDRAW = 0x0001;
    const uint CS_HREDRAW = 0x0002;
 
    const int CW_USEDEFAULT = -2147483648; // ((uint)0x80000000)
 
    const uint SW_SHOWDEFAULT = 10;
 
    const int IDI_APPLICATION = 32512;
    const int IDC_ARROW = 32512;
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr LoadCursor(IntPtr hInstance, IntPtr lpCursorName);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr LoadIcon(IntPtr hInstance, IntPtr lpIconName);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern short RegisterClassEx(ref WNDCLASSEX pcWndClassEx);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr CreateWindowEx(uint dwExStyle, string lpClassName, string lpWindowName, uint dwStyle, int x, int y, int nWidth, int nHeight, IntPtr hWndParent, IntPtr hMenu, IntPtr hInstance, IntPtr lpParam);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern bool ShowWindow(IntPtr hWnd, uint nCmdShow);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern bool UpdateWindow(IntPtr hWnd);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern int GetMessage(out MSG lpMsg, IntPtr hWnd, uint wMsgFilterMin, uint wMsgFilterMax);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern int TranslateMessage([In] ref MSG lpMsg);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr DispatchMessage([In] ref MSG lpMsg);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern void PostQuitMessage(int nExitCode);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr DefWindowProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr BeginPaint(IntPtr hWnd, out PAINTSTRUCT lpPaint);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr EndPaint(IntPtr hWnd, ref PAINTSTRUCT lpPaint);
 
    [DllImport("gdi32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr TextOut( IntPtr hdc, int x, int y, string lpString, int nCount );
 
    [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr GetModuleHandle(string lpModuleName);
 
    static IntPtr WndProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam)
    {
        PAINTSTRUCT ps = new PAINTSTRUCT();
        IntPtr hdc;
        string strMessage = "Hello, Win32 GUI(MSIL) World!";
 
        switch (uMsg)
        {
            case WM_PAINT:
                hdc = BeginPaint( hWnd, out ps );
                TextOut( hdc, 0, 0, strMessage, strMessage.Length );
                EndPaint( hWnd, ref ps );
                break;
            case WM_DESTROY:
                PostQuitMessage(0);
                break;
            default:
                return DefWindowProc(hWnd, uMsg, wParam, lParam);
        }
 
        return IntPtr.Zero;
    }
 
    static int WinMain(string[] args)
    {
        IntPtr hInstance = Marshal.GetHINSTANCE(typeof(Hello).Module);
        const string CLASS_NAME = "helloWindow";
        const string WINDOW_NAME = "Hello, World!";
 
        WNDCLASSEX wcex = new WNDCLASSEX();
        wcex.cbSize = (uint)Marshal.SizeOf(wcex);
        wcex.style = CS_HREDRAW | CS_VREDRAW;
        wcex.lpfnWndProc = new WndProcDelgate(WndProc);
        wcex.cbClsExtra = 0;
        wcex.cbWndExtra = 0;
        wcex.hInstance = hInstance;
        wcex.hIcon = LoadIcon(hInstance, new IntPtr(IDI_APPLICATION));
        wcex.hCursor = LoadIcon(hInstance, new IntPtr(IDC_ARROW));
        wcex.hbrBackground = new IntPtr(COLOR_WINDOW + 1);
        wcex.lpszMenuName = "";
        wcex.lpszClassName = CLASS_NAME;
        wcex.hIconSm = IntPtr.Zero;
 
        RegisterClassEx(ref wcex);
 
        IntPtr hWnd = CreateWindowEx(
            0,
            wcex.lpszClassName,
            WINDOW_NAME,
            WS_OVERLAPPEDWINDOW,
            CW_USEDEFAULT,
            CW_USEDEFAULT,
            640,
            480,
            IntPtr.Zero,
            IntPtr.Zero,
            wcex.hInstance,
            IntPtr.Zero);
 
        ShowWindow(hWnd, SW_SHOWDEFAULT);
        UpdateWindow(hWnd);
 
        MSG msg = new MSG();
        while (GetMessage(out msg, IntPtr.Zero, 0, 0) != 0)
        {
            TranslateMessage(ref msg);
            DispatchMessage(ref msg);
        }
 
        return (int)msg.wParam;
    }
 
    [STAThread]
    static int Main(string[] args)
    {
        return WinMain( args );
    }
}

    コンパイル方法

    C:¥> ilasm Hello.il

    実行結果

    +------------------------------------------+
|Hello, World!                    [_][~][X]|
+------------------------------------------+
|Hello, Win32 GUI(MSIL) World!             |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
+------------------------------------------+

  9. Hello, Win32 GUI(VB.NET) World!

    Posted on 7月 10th, 2012 by cx20

    Win32 GUI(VB.NET)

    Win32 アプリケーションは Windows 標準 API である Win32 API を使用した Windows アプリケーションである。
    以下は VB.NET において Win32 API を使用した GUI アプリケーション の例となっている。

    ソースコード

    Hello.vb
    raw download
    Imports System.Runtime.InteropServices
 
Public Class HelloWindow
    Const WS_CAPTION As Integer = &HC00000
    Const WS_MAXIMIZEBOX As Integer = &H10000
    Const WS_MINIMIZEBOX As Integer = &H20000
    Const WS_OVERLAPPED As Integer = &H0
    Const WS_SYSMENU As Integer = &H80000
    Const WS_THICKFRAME As Integer = &H40000
    Const WS_OVERLAPPEDWINDOW As Integer = ( _
        WS_OVERLAPPED Or _
        WS_CAPTION Or _
        WS_SYSMENU Or _
        WS_THICKFRAME Or _
        WS_MINIMIZEBOX Or _
        WS_MAXIMIZEBOX)
 
    Const COLOR_WINDOW As Integer = 5
    Const COLOR_BTNFACE As Integer = 15
 
    Const CS_VREDRAW As Integer = &H1
    Const CS_HREDRAW As Integer = &H2
    Const CW_USEDEFAULT As Integer = &H80000000
 
    Const IDI_APPLICATION As Integer = 32512
    Const IDC_ARROW As Integer = 32512
 
    Const LTGRAY_BRUSH As Integer = 1
 
    Const SW_SHOWNORMAL As Integer = 1
    Const SW_SHOWDEFAULT As Integer = 10
 
    Const WM_DESTROY As Integer = &H2
    Const WM_PAINT As Integer = &HF
 
    Delegate Function WndProcDelgate( _
        ByVal hWnd As IntPtr, _
        ByVal Message As Integer, _
        ByVal wParam As IntPtr, _
        ByVal lParam As IntPtr _
    ) As IntPtr
 
    <StructLayout(LayoutKind.Sequential)> _
    Structure POINTAPI
        Public x As Integer
        Public y As Integer
    End Structure
 
    <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Auto)> _
    Structure MSG
        Public hWnd As IntPtr
        Public Message As Integer
        Public wParam As IntPtr
        Public lParam As IntPtr
        Public time As Integer
        Public pt As POINTAPI
    End Structure
 
    <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Auto)> _
    Structure WNDCLASSEX
        Public cbSize As Integer
        Public style As Integer
        Public lpfnWndProc As WndProcDelgate
        Public cbClsExtra As Integer
        Public cbWndExtra As Integer
        Public hInstance As IntPtr
        Public hIcon As IntPtr
        Public hCursor As IntPtr
        Public hbrBackground As IntPtr
        Public lpszMenuName As String
        Public lpszClassName As String
        Public hIconSm As IntPtr
    End Structure
 
    <StructLayout(LayoutKind.Sequential)> _
    Structure RECT
        Public Left As Integer
        Public Top As Integer
        Public Right As Integer
        Public Bottom As Integer
    End Structure
 
    <StructLayout(LayoutKind.Sequential)> _
    Structure PAINTSTRUCT
        Public hdc As IntPtr
        Public fErase As Integer
        Public rcPaint As RECT
        Public fRestore As Integer
        Public fIncUpdate As Integer
        <MarshalAs(UnmanagedType.ByValArray, SizeConst := 32)> _
        Public rgbReserved As Byte()
    End Structure
 
    Declare Auto Function LoadCursor Lib "user32" ( _
        ByVal hInstance As IntPtr, _
        ByVal lpCursorName As IntPtr _
    ) As IntPtr
 
    Declare Auto Function LoadIcon Lib "user32" ( _
        ByVal hInstance As IntPtr, _
        ByVal lpIconName As IntPtr _
    ) As IntPtr
 
    Declare Auto Function RegisterClassEx Lib "user32" ( _
        ByRef pcWndClassEx As WNDCLASSEX _
    ) As Integer
 
    Declare Auto Function CreateWindowEx Lib "user32" ( _
        ByVal dwExStyle As Integer, _
        ByVal lpClassName As String, _
        ByVal lpWindowName As String, _
        ByVal dwStyle As Integer, _
        ByVal x As Integer, _
        ByVal y As Integer, _
        ByVal nWidth As Integer, _
        ByVal nHeight As Integer, _
        ByVal hWndParent As IntPtr, _
        ByVal hMenu As IntPtr, _
        ByVal hInstance As IntPtr, _
        ByVal lpParam As IntPtr _
    ) As IntPtr
 
    Declare Function ShowWindow Lib "user32" ( _
        ByVal hWnd As IntPtr, _
        ByVal nCmdShow As Integer _
    ) As Boolean
 
    Declare Function UpdateWindow Lib "user32" (ByVal hWnd As IntPtr) As Boolean
 
    Declare Auto Function GetMessage Lib "user32" ( _
        ByRef lpMsg As MSG, _
        ByVal hWnd As IntPtr, _
        ByVal wMsgFilterMin As Integer, _
        ByVal wMsgFilterMax As Integer _
     ) As Boolean
 
    Declare Function TranslateMessage Lib "user32" ( _
        ByRef lpMsg As MSG _
    ) As Boolean
 
    Declare Auto Function DispatchMessage Lib "user32" ( _
        ByRef lpMsg As MSG _
    ) As IntPtr
 
    Declare Sub PostQuitMessage Lib "user32" ( _
        ByVal nExitCode As Integer _
    )
 
    Declare Function BeginPaint Lib "user32" ( _
        ByVal hwnd As IntPtr, _
        ByRef lpPaint As PAINTSTRUCT _
    ) As IntPtr
 
    Declare Function EndPaint Lib "user32" ( _
        ByVal hwnd As IntPtr, _
        ByRef lpPaint As PAINTSTRUCT _
    ) As IntPtr
 
    Declare Auto Function TextOut Lib "gdi32" ( _
        ByVal hdc As IntPtr, _
        ByVal x As Integer, _
        ByVal y As Integer, _
        ByVal lpString As String, _
        ByVal nCount As Integer _
    ) As Integer
 
    Declare Function GetStockObject Lib "gdi32" ( _
        ByVal nIndex As Integer _
    ) As IntPtr
 
    Declare Auto Function DefWindowProc Lib "user32" ( _
        ByVal hWnd As IntPtr, _
        ByVal wMsg As Integer, _
        ByVal wParam As IntPtr, _
        ByVal lParam As IntPtr _
    ) As IntPtr
 
    Function WndProc( _
        ByVal hWnd As IntPtr, _
        ByVal msg As Integer, _
        ByVal wParam As IntPtr, _
        ByVal lParam As IntPtr _
    ) As IntPtr
 
        Dim ps As New PAINTSTRUCT
        Dim hdc As IntPtr
        Dim strMessage As String
        strMessage = "Hello, Win32 GUI(VB.NET) World!"
 
        Select Case msg
            Case WM_PAINT
                hdc = BeginPaint(hwnd, ps)
                TextOut( hdc, 0, 0, strMessage, Len(strMessage) )
                EndPaint( hwnd, ps )
            Case WM_DESTROY
                PostQuitMessage(0)
            Case Else
                Return DefWindowProc(hWnd, msg, wParam, lParam)
        End Select
 
        Return IntPtr.Zero
    End Function
 
    Public Function WinMain() As Integer
        Const CLASS_NAME As String = "helloWindow"
        Const WINDOW_NAME As String = "Hello, World!"
 
        Dim hInstance As IntPtr = Marshal.GetHINSTANCE(GetType(HelloWindow).Module)
        Dim hWnd As IntPtr
        Dim msg As MSG
 
        Dim wcex As New WNDCLASSEX
        With wcex
            .cbSize = Marshal.SizeOf(wcex)
            .style = CS_HREDRAW Or CS_VREDRAW
            .lpfnWndProc = New WndProcDelgate(AddressOf WndProc)
            .cbClsExtra = 0
            .cbWndExtra = 0
            .hInstance = hInstance
            .hIcon = LoadIcon(hInstance, New IntPtr(IDI_APPLICATION))
            .hCursor = LoadCursor(hInstance, New IntPtr(IDC_ARROW))
            .hbrBackground = New IntPtr(COLOR_WINDOW + 1)
            .lpszMenuName = Nothing
            .lpszClassName = CLASS_NAME
            .hIconSm = LoadIcon(hInstance, New IntPtr(IDI_APPLICATION))
        End With
 
        RegisterClassEx(wcex)
 
        hWnd = CreateWindowEx( _
            0, _
            CLASS_NAME, _
            WINDOW_NAME, _
            WS_OVERLAPPEDWINDOW, _
            CW_USEDEFAULT, CW_USEDEFAULT, 640, 480, _
            IntPtr.Zero, IntPtr.Zero, hInstance, IntPtr.Zero)
 
        ShowWindow(hWnd, SW_SHOWDEFAULT)
        UpdateWindow(hWnd)
 
        Do While GetMessage(msg, IntPtr.Zero, 0, 0)
            TranslateMessage(msg)
            DispatchMessage(msg)
        Loop
 
        Return CType(msg.wParam, Integer)
    End Function
 
    Public Shared Sub Main()
        Dim hello As New HelloWindow
        hello.WinMain()
    End Sub
End Class

    コンパイル方法

    C:¥> vbc /target:winexe Hello.vb

    実行結果

    +------------------------------------------+
|Hello, World!                    [_][~][X]|
+------------------------------------------+
|Hello, Win32 GUI(VB.NET) World!           |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
+------------------------------------------+

  10. Hello, Win32 GUI(C#) World!

    Posted on 7月 9th, 2012 by cx20

    Win32 GUI(C#)

    Win32 アプリケーションは Windows 標準 API である Win32 API を使用した Windows アプリケーションである。
    以下は C# において Win32 API を使用した GUI アプリケーション の例となっている。

    ソースコード

    Hello.cs
    raw download
    using System;
using System.Runtime.InteropServices;
 
class Hello
{
    [StructLayout(LayoutKind.Sequential)]
    struct POINT
    {
        public int x;
        public int y;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct MSG
    {
        public IntPtr hwnd;
        public uint message;
        public IntPtr wParam;
        public IntPtr lParam;
        public uint time;
        public POINT pt;
    }
 
    delegate IntPtr WndProcDelgate(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam);
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
    struct WNDCLASSEX
    {
        public uint cbSize;
        public uint style;
        public WndProcDelgate lpfnWndProc;
        public Int32 cbClsExtra;
        public Int32 cbWndExtra;
        public IntPtr hInstance;
        public IntPtr hIcon;
        public IntPtr hCursor;
        public IntPtr hbrBackground;
        public string lpszMenuName;
        public string lpszClassName;
        public IntPtr hIconSm;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct RECT
    {
        public int Left;
        public int Top;
        public int Right;
        public int Bottom;
    }
 
    [StructLayout(LayoutKind.Sequential)]
    struct PAINTSTRUCT
    {
        public IntPtr hdc;
        public int fErase;
        public RECT rcPaint;
        public int fRestore;
        public int fIncUpdate;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
        public byte[] rgbReserved;
    }
 
    const uint WS_OVERLAPPED = 0x00000000;
    const uint WS_POPUP = 0x80000000;
    const uint WS_CHILD = 0x40000000;
    const uint WS_MINIMIZE = 0x20000000;
    const uint WS_VISIBLE = 0x10000000;
    const uint WS_DISABLED = 0x08000000;
    const uint WS_CLIPSIBLINGS = 0x04000000;
    const uint WS_CLIPCHILDREN = 0x02000000;
    const uint WS_MAXIMIZE = 0x01000000;
    const uint WS_CAPTION = 0x00C00000; // WS_BORDER | WS_DLGFRAME
    const uint WS_BORDER = 0x00800000;
    const uint WS_DLGFRAME = 0x00400000;
    const uint WS_VSCROLL = 0x00200000;
    const uint WS_HSCROLL = 0x00100000;
    const uint WS_SYSMENU = 0x00080000;
    const uint WS_THICKFRAME = 0x00040000;
    const uint WS_GROUP = 0x00020000;
    const uint WS_TABSTOP = 0x00010000;
 
    const uint WS_MINIMIZEBOX = 0x00020000;
    const uint WS_MAXIMIZEBOX = 0x00010000;
 
    const uint WS_TILED = WS_OVERLAPPED;
    const uint WS_ICONIC = WS_MINIMIZE;
    const uint WS_SIZEBOX = WS_THICKFRAME;
    const uint WS_TILEDWINDOW = WS_OVERLAPPEDWINDOW;
 
    const uint WS_OVERLAPPEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX;
    const uint WS_POPUPWINDOW = WS_POPUP | WS_BORDER | WS_SYSMENU;
    const uint WS_CHILDWINDOW = WS_CHILD;
 
    const uint WM_CREATE = 0x0001;
    const uint WM_DESTROY = 0x0002;
    const uint WM_PAINT = 0x000F;
    const uint WM_CLOSE = 0x0010;
    const uint WM_COMMAND = 0x0111;
 
    const uint COLOR_WINDOW = 5;
    const uint COLOR_BTNFACE = 15;
 
    const uint CS_VREDRAW = 0x0001;
    const uint CS_HREDRAW = 0x0002;
 
    const int CW_USEDEFAULT = -2147483648; // ((uint)0x80000000)
 
    const uint SW_SHOWDEFAULT = 10;
 
    const int IDI_APPLICATION = 32512;
    const int IDC_ARROW = 32512;
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr LoadCursor(IntPtr hInstance, IntPtr lpCursorName);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr LoadIcon(IntPtr hInstance, IntPtr lpIconName);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern short RegisterClassEx(ref WNDCLASSEX pcWndClassEx);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr CreateWindowEx(uint dwExStyle, string lpClassName, string lpWindowName, uint dwStyle, int x, int y, int nWidth, int nHeight, IntPtr hWndParent, IntPtr hMenu, IntPtr hInstance, IntPtr lpParam);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern bool ShowWindow(IntPtr hWnd, uint nCmdShow);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern bool UpdateWindow(IntPtr hWnd);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern int GetMessage(out MSG lpMsg, IntPtr hWnd, uint wMsgFilterMin, uint wMsgFilterMax);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern int TranslateMessage([In] ref MSG lpMsg);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr DispatchMessage([In] ref MSG lpMsg);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern void PostQuitMessage(int nExitCode);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr DefWindowProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr BeginPaint(IntPtr hWnd, out PAINTSTRUCT lpPaint);
 
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr EndPaint(IntPtr hWnd, ref PAINTSTRUCT lpPaint);
 
    [DllImport("gdi32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr TextOut( IntPtr hdc, int x, int y, string lpString, int nCount );
 
    [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr GetModuleHandle(string lpModuleName);
 
    static IntPtr WndProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam)
    {
        PAINTSTRUCT ps = new PAINTSTRUCT();
        IntPtr hdc;
        string strMessage = "Hello, Win32 GUI(C#) World!";
 
        switch (uMsg)
        {
            case WM_PAINT:
                hdc = BeginPaint( hWnd, out ps );
                TextOut( hdc, 0, 0, strMessage, strMessage.Length );
                EndPaint( hWnd, ref ps );
                break;
            case WM_DESTROY:
                PostQuitMessage(0);
                break;
            default:
                return DefWindowProc(hWnd, uMsg, wParam, lParam);
        }
 
        return IntPtr.Zero;
    }
 
    static int WinMain(string[] args)
    {
        IntPtr hInstance = Marshal.GetHINSTANCE(typeof(Hello).Module);
        const string CLASS_NAME = "helloWindow";
        const string WINDOW_NAME = "Hello, World!";
 
        WNDCLASSEX wcex = new WNDCLASSEX();
        wcex.cbSize = (uint)Marshal.SizeOf(wcex);
        wcex.style = CS_HREDRAW | CS_VREDRAW;
        wcex.lpfnWndProc = new WndProcDelgate(WndProc);
        wcex.cbClsExtra = 0;
        wcex.cbWndExtra = 0;
        wcex.hInstance = hInstance;
        wcex.hIcon = LoadIcon(hInstance, new IntPtr(IDI_APPLICATION));
        wcex.hCursor = LoadIcon(hInstance, new IntPtr(IDC_ARROW));
        wcex.hbrBackground = new IntPtr(COLOR_WINDOW + 1);
        wcex.lpszMenuName = "";
        wcex.lpszClassName = CLASS_NAME;
        wcex.hIconSm = IntPtr.Zero;
 
        RegisterClassEx(ref wcex);
 
        IntPtr hWnd = CreateWindowEx(
            0,
            wcex.lpszClassName,
            WINDOW_NAME,
            WS_OVERLAPPEDWINDOW,
            CW_USEDEFAULT,
            CW_USEDEFAULT,
            640,
            480,
            IntPtr.Zero,
            IntPtr.Zero,
            wcex.hInstance,
            IntPtr.Zero);
 
        ShowWindow(hWnd, SW_SHOWDEFAULT);
        UpdateWindow(hWnd);
 
        MSG msg = new MSG();
        while (GetMessage(out msg, IntPtr.Zero, 0, 0) != 0)
        {
            TranslateMessage(ref msg);
            DispatchMessage(ref msg);
        }
 
        return (int)msg.wParam;
    }
 
    [STAThread]
    static int Main(string[] args)
    {
        return WinMain( args );
    }
}

    コンパイル方法

    C:¥> csc /target:winexe Hello.cs

    実行結果

    +------------------------------------------+
|Hello, World!                    [_][~][X]|
+------------------------------------------+
|Hello, Win32 GUI(C#) World!               |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
|                                          |
+------------------------------------------+
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